A separate ChangeWave poll of corporate PC buyers found increasing demand for Macs, too. For companies planning to buy computers next quarter, 7 percent of laptop buyers and 6 percent of desktop buyers plan to get Macs--up from 4 percent of laptop buyers and 3 percent of desktop buyers two years ago.

Also of note is the statistic showing that nearly one-in-four respondents (24 percent) of the most recent poll say that the release of Leopard makes them more likely to buy Mac.